/**
 *  Copyright (c) 1997-2013, www.tinygroup.org (luo_guo@icloud.com).
 *
 *  Licensed under the GPL, Version 3.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.gnu.org/licenses/gpl.html
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.tinygroup.weblayer.filter;

import org.tinygroup.weblayer.AbstractTinyFilter;
import org.tinygroup.weblayer.WebContext;
import org.tinygroup.weblayer.webcontext.lazycommit.impl.LazyCommitWebContextImpl;

/**
 * 延迟提交response，用来支持基于cookie的session。
 * 
 * @author renhui
 * 
 */
public class LazyCommitTinyFilter extends AbstractTinyFilter {

	
	public void preProcess(WebContext context) {

	}

	
	public void postProcess(WebContext context) {
		if (context instanceof LazyCommitWebContextImpl) {
			LazyCommitWebContextImpl lazy = (LazyCommitWebContextImpl) context;
			lazy.commit();
		}
	}

	
	public WebContext getAlreadyWrappedContext(WebContext wrappedContext) {
		return new LazyCommitWebContextImpl(wrappedContext);
	}

	
	public int getOrder() {
		return LAZY_COMMIT_FILTER_PRECEDENCE;
	}
	
	

}
